我想在我的 django 应用程序中删除和编辑笔记，但我对这个错误感到震惊很长时间 错误 ： ”/delete/1/ 处出现类型错误 字段“id”需要一个数字，但得到了。"
模型.py
from django.db import models
from django.utils import timezone
# Create your models here.
class Category(models.Model):
name = models.CharField(max_length=100)
class Meta:
verbose_name = ("Category")
verbose_name_plural = ("Categories")
def __str__(self):
return self.name
class ToDoList(models.Model):
title = models.CharField(max_length=200)
content = models.CharField(max_length=500)
created_on = models.DateField(default=timezone.now().strftime("%Y-%m-%d"))
due_date = models.DateField(default=timezone.now().strftime("%Y-%m-%d"))
category = models.ForeignKey(Category,on_delete=models.DO_NOTHING,default="general")
class Meta:
ordering = ["-created_on"]
def __str__(self):
return self.title
class Note(models.Model):
text = models.CharField(max_length=100)
created = models.DateTimeField(auto_now_add = True)
class Meta:
verbose_name = ("Note")
def __str__(self):
return self.text
我的 todoapp/urls.py
urls.py
from django.contrib import admin
from django.urls import path, include
from todolist.views import index,note,del_note,edit_note
urlpatterns = [
path('admin/', admin.site.urls),
path('',index,name = 'ToDoList'),
#path('',note,name = 'Note'),
path('note/', note, name='Note'),
path('delete/<note_id>/',del_note ,name = 'del_note'),
path('edit/<note_id>/',edit_note,name='edit_note'),
]
我的待办事项/观点views.py
def del_note(request, note_id):
x = Note.objects.get(id = id)
print (x) // tried for degugging
x.delete()
return redirect("/")
def edit_note(request, note_id):
x = Note.objects.get( id = id)
print (x)
return redirect("/")
这是我的html注释.html
<body>
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">ToDo/Notes</a>
</div>
<ul class="nav navbar-nav">
<li><a href="{% url 'ToDoList' %}">ToDoApp</a></li>
<li class="active"><a href="{% url 'Note' %}">Notes</a></li>
</ul>
</div>
</nav>
<div class="container">
<div class="content">
<h1>Notes</h1>
<p class="tagline">a Django Notes app</p>
<form action="" method="POST">
{% csrf_token %}
<div class="inputContainer">
{{ form.as_p }}
<input type="submit" placeholder="Add a Note" value="Add note">
</div>
</form>
</div>
</div>
<section class="section">
<div class="container">
<div class="row">
{% for sticky in Notes %}
<div class="col-md-3">
<div class="box">
<article class="media">
<div class="media-left">
<a href="{% url 'edit_note' sticky.id %}"
<button class="glyphicon glyphicon-pencil">
</button>
</a>
</div>
<div class="media-content">
<div class="content">
<ul>
<li>
<p>{{sticky.text}}</p>
</li>
</ul>
</div>
</div>
<div class="media-right">
<a href="{% url 'del_note' sticky.id %}"
<button class="delete"></button>
</a>
</div>
</article>
</div>
</div>
{% endfor %}
</div>
</div>
</section>
</body>
迁移文件0001_初始.py
# Generated by Django 3.0.3 on 2020-03-28 06:07
from django.db import migrations, models
import django.db.models.deletion
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='Category',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('name', models.CharField(max_length=100)),
],
options={
'verbose_name': 'Category',
'verbose_name_plural': 'Categories',
},
),
migrations.CreateModel(
name='Note',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('text', models.CharField(max_length=100)),
('created', models.DateTimeField(auto_now_add=True)),
],
options={
'verbose_name': 'Note',
},
),
migrations.CreateModel(
name='ToDoList',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('title', models.CharField(max_length=200)),
('content', models.CharField(max_length=500)),
('created_on', models.DateField(default='2020-03-28')),
('due_date', models.DateField(default='2020-03-28')),
('category', models.ForeignKey(default='general', on_delete=django.db.models.deletion.DO_NOTHING, to='todolist.Category')),
],
options={
'ordering': ['-created_on'],
},
),
]
here is my note app page
so when i click on delete note i get below error
您能否提供有关如何执行 edit_note 操作来编辑我的笔记的想法，提前致谢。
你需要在这里改变：
from django.shortcuts import render
def del_note(request, note_id):
x = Note.objects.get(id = note_id) # <-- Here
print (x) // tried for degugging
x.delete()
return redirect("/")
def edit_note(request, note_id):
x = Note.objects.get( id = note_id) # <-- Here
form = NoteForm(request.POST or None, instance=x)
if request.method == "POST":
if form.is_valid():
form.save()
return redirect("/")
return render(request, 'edit_template.html', context={'form':form,'sticky':x})
# edit_template.html
<form action="{% url 'edit_note' sticky.id %}" method="POST">
{% csrf_token %}
<div class="inputContainer">
{{ form.as_p }}
<input type="submit" placeholder="Edit Note" value="Edit note">
</div>
</form>
发生错误是因为您通过了id，但你应该通过note_id反而。